Chapter 2 Installation of OEM7 Family Receiver Cards
OEM7 Installation and Operation User Manual v4
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Figure 8: Mounting with Rails and Clamping Bars
The mounting holes in the OEM7 receiver cards accept M3 fasteners with a maximum projected
head diameter of 7.5 mm (0.295"). For the exact spacing of the mounting holes, see
on page 169 and
For proper grounding and mechanical integrity, mount the OEM719, OEM7700 and
OEM7720 with four screws.
For proper grounding and mechanical integrity, mount the OEM729 with six screws.
When installing cards, ensure all standoffs are properly installed.
Also ensure that the mounting location (whether using standoffs, bosses or rails) is
level.
The amount of board deflection (bow and twist) must not exceed 0.75% of the
receiver card's characteristic dimension. For example, on the OEM7700, which is 71
mm long and 46 mm wide, the deflection along the length must not exceed 0.53 mm
and the deflection along the width must not exceed 0.34 mm.
Care needs to be taken when mating the OEM7700 or OEM7720 receiver to an
interface card or system board. The high-density, 60 position connectors on both
cards need to be properly aligned before mating to prevent damage to the connectors.
See
Figure 9: Mounting the High-Density, 60 Pin Connector
A method to ensure proper alignment of the connectors is to slowly bring the mating
faces together and let the connectors find their centers as the mating faces come to
rest against each other. At this stage, visually check that the connectors are aligned.
If the connectors are aligned, gently push the connectors together to mate them.
A fixture or jig will also be of help in ensuring proper alignment between the two
connectors.
